Color and pattern of the male

Head: creamy-white.

Hackles: creamy-white to straw-yellow with some black shaft-stripes in the lower half; front of the neck and beard deep-black.

Back, shoulders and wing-bows: almost silvery-white with some light red tinge.

Tail: black, upper main-feathers black partial white laced.

Wing-bar: black, moderate glossy greenish or bluish.

Primary-flights: black with a narrow white lace on the outer-web.

Secondary-flights: inner-web black, outer-web white forming a white wing-bay when the wing is closed.

Breast flanks and thighs: deep black.

Belly, fluff,  leg- and outertoe-feathering: black to greyish-black.

Down: white to light blue-grey.

Serious faults

Extensive white on the breast, belly and thighs. 

Faults

Small white feather-tips on the breast, flanks, thighs, belly and leg- and outertoe-feathering.

Color and pattern of the female

Head and neck-hackle: soft salmon-pink, each feather of the hackle with a creamy-white lacing and vein; some greyish-black feather-tips at the bottom of the hackle; front of the neck and beard creamy-white.

Back, wing-coverts and saddle: salmon-colored, each feather with a creamy-white lacing and vein. 

Tail: upper main-feathers salmon-colored on both sides with faintly greyish-black peppering, other main-feathers dull grey-black with a salmon lace; coverts similar to the back.     

Primary-flights: soft salmon, inner-web mixing grey-black.

Secondary-flights: outer-web soft salmon, inner-web grey-black.

Breast, flanks, thighs, belly, fluff, leg- and outertoe-feathering: creamy-white.

Down: white to light blue-grey.

Serious faults

Uneven salmon-color. Rust. Complete absence of pattern on the shoulders.

Faults

Slightly uneven salmon-color. Few pattern on the shoulders.

Feather details from:  http://www.kippenencyclopedie.nl

Website from Johan Albada with more than:

         5000 photos of chicken-breeds, chicken color varieties and feathers. 

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website from Henk Meijers with all available information regarding chicken genetics including the world famous 

Chicken Color Calculator